Sewer catch basin unit



V- 1931- c. PALMER 1,830,714

SEWER CATCH BASIN UNIT Filed Jan. 28, 1931 2 Sheets-Sheet 1 INVENTOR.

lZs'aac Lilalnzer,

A TTORNE Y.

i. PALE YER SEWER CATCH BASIN UNIT Filed Jan. 28, 1951 2 sheets Sheet &

INVTOR.

ATTORNEY.

Patented Nov. 3, 1931 PATENT- orrics ISAAC CHARLES PALMER, or PITTSBURGH, PENNSYLVAN A SEWER care-n BAsI'N' UNIT Application filed January 28,1931. Serial No. 511,890.

This invention relates to a sewer catch basin and has for its objectto provide, in a manner as hereinafter set forth, a structure of the class referred to that can be conven iently set up in one complete unit on the sidewalk of any street and having an outlet leading to the sewer, a trap or seal to prevent the emission of gas from the sewer tothe surface and the entrance of grit or solid matter into the outlet, and removable means positioned below and adjacent the trap or seal for collecting such grit or solid matter which has entered the basin or unit.

Further objects of the invention are to pr0- vide, in a manner as hereinafter set forth, a sewer catch basin unit which is comparative- 1y simple in its construction and arrangement, strong, durable, capable of being readily installed on the sidewalk, thoroughly efficient in its use, conveniently cleaned, and comparatively inexpensive: 7

With the foregoing and other objects in view, the invention consists of the novel con- I struction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claim hereunto appended.

In the drawings 'wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a vertical sectional view of a sewer catch basin unit in accordance with this invention.

Figure 2 is a vertical sectional view of the removable collector for the grit or solid matter and further illustrating in dotted lines the hinged section of the bottom thereof in open position. b I

Figure 3 is a top plan of the collector.

Figure 4 is an inverted plan of the collector.

Figure 5 is an elevation of the hinged section of the bottom looking towards the lower face thereof.

The sewer catch basin unit in accordance with this invention'includes a vertically disposed, tubular, open top and closed bottom concrete structure 1 arranged below the sidewalk and having its top flush with the street surface or level. The structure 1 provides an upper chamber 2 and a. lower chamber 3.

The wall of chamber 2 has an upper flaring part 4: and a lower part 5 of uniform diameter. The chamber 3 is of uniform diameter throughout and has its walls 6 out-set with respect to the lower part bet the wall of chamber 2 thereby forming a shoulder 7 at the lower end of chamber 2. The bottom or lower end of chamber 2 opens into the top of chamber 3. The chamber 2 is what is termed the intake chamber of the basin and the chamber 3 a removable collector receivin}; chamber.

The top edge of structure 1, at the front thereof slopes downwardly, as at 8 in a direction towards chamber 2, p The structure 1 is provided with a trapping chamber 9 which is offset with respect to chambers 2, 3 and extends laterally from the lower portion of chamber 2. The cham ber 9 is of rectangular contour and includes 7 a top wall 10, a pair of side walls 11, 12, a bottom 13, an outer wall 14 and an inner wall of less height than the outer wall. The inner wall is provided by a trap plate 15 of T-shaped cross section. The head 16 of plate 15 is embedded in the top wall 10. The plate 15-has its lower edge spaced above the bottom wall 13 to provide an intake'for chamber 9. The side edges of plate 15 extend into the sidewalls 11,12. The bottom 13 of chamber 9is flush with the lower end of chamber 2. The plate 15 is spaced from the wall 14:. Y

Opening into the chamber 9, through the wall 14, at a point above the bottom 13 of the chamber 9, is a conduit 17 which leads to the sewer, not shown. The conduit 17 extendsat a downward inclination from the structure 1. The plate 15 depends below that end of the conduit 17 which opens into the chamber 9. The arrangement of the chamber 9 with respect to the chambers 2, 3 and conduit 17 provides a water seal 18" to prevent the emission of gas'fro'm the sewer through the basin to the surface. Embedded in and flush with the sidewalk 18 and extending to the street surface 19 is a metallic cover element 20 for the open top of structure 1. The element 20 is formed with an inlet 21 over the outer end of the sloping portion 8 of the top edge of structure 1. The said sloping portion 8 at its outer end being flush with the street surface 19. The element 20 is provided with an opening 22 in which is normally arranged removable closure 23 and by this arrangement access can be had through the element 20 to the interior of structure 1.

Leading from the gutter and opening into the lower part of chamber 2 is a drain pipe 24.

Positioned within the chamber 3, abutting throughout the wall 6 of the latter and eX- tending from shoulder 7 to the bottom 25 of chamber 3 is a tubular member or cylinder 26 having its body of a thickness to project from shoulder 7. That portion of the top edge of the cylinder 26 which projects from the shoulder '7 and which is indicated at 27 provides an endless supporting ledge for a purpose to be presently referred to.

Suspended within the cylinder 26 is a removable collector 28 for the grit or solid matter which enters the basin. The collector 28 is in the form of a bucket comprising a non-split or integral perforated annular body portion 29 which gradually decreases in diameter from its upper to its lower end and has formed integral with the top thereof an outwardly directed right angularly disposed annular flange 30. The perforations in the body of the collector are indicated at 31.

The bottom of the collector 28 is formed of a pair of fixed outer sections 32, 33 and a central hinged section 34 positioned between the fixed sections. The section 34 when closed abuts spaced parts of the bottom edge of body portion. 29. The sections 32, 33 have their outer edges flush with the outerface and the outer marginal portions of their upper faces integral with spacedparts of the edge at the lower end of body portion 29. Depending from each of the fixed sections is a supporting lug 35. Thelugs 35 are arranged diametrically opposite each other.

epending from the bottom edge of body portion 29 and diametrically opposed are a pair of supporting lugs 36. The hinged section 34 has a pair of cutouts37 to clear the lugs 36 when section 34 abuts the lower edge of body portion 29. The section 34 is formed with perforations 38. The lugs 35 and 36 maintain the bottom of the collector from off the surface on which the collector is standing.

The sections 32 and 34 are hinged together, as at 39. The section 34 carries a sliding bolt 40 operating through spaced brackets 41 and which is adapted to engage in a. keeper 42 carried by section 33 for latching section 34 in closed position. The bolt 40 has an angled shaped end 43 for limiting the latching movement thereof. The section 34 carries a stop 44 for limiting the travel of the bolt when shifted to unlatching position.

Fixedly secured to the upper portion of the collector 28 is a rigid handle formed from a strap of metallic material and consisting of a pair of vertical parts 45 and an inverted V-shaped part 46. The parts 45 are secured directly to the inner face of body portion 29 diametrically opposite each other and having their upper end-s flush with the top edge of body portion '29. The inverted V part 46 isbraced by a bar 47 which is arranged be tween and has its ends secured to opposed portions of the inner face of part 46. The parts 45 and flange 30 reinforces the upper end of body portion 29. The handle is for connection to an elevating means to remove the collector. The, inner face of the body portion 29 is uninterrupted other than by the openings 31 and vertical parts 45 of the handle.

In a sewer catch basin, a removable collector for suspension therein, said collector including a tapered, apertured body part of cylindrical cross section,'said body part open at its top and formed with an annular peripheral flange at its upper end, a pair of spaced, opposed outer bottom sections of segmental contour integral with spaced portions of the bottom edge of and for partly closing the bottom ofsaid body part, a shiftable intermediate bottom section for interposition between said outer sections for normally completely closing the bottom of said body part, said intermediate section when in closing position abutting spaced portions of said bottom edge, means carried by one of said outer sections and said intermediate section for hinging the latter to the former, means carried by the other outer section and said intermediate section for latching the latter to the former for maintaining the intermediate section in closing position, said intermediate section being notched at each end thereof and formed with spaced openings, a depending-lug integral with each outer section, and a pair of depending lugs integral I with said bottom edge at diametrically opposite points of the latter, and said notches providing clearances for said pair of lugs when the intermediate section is shifted to and from closing position.

In testimony whereof, I afiix my signature hereto.

' ISAAC CHARLES PALMER. 

